I bought this phone over a year ago and have had a few problems with it. The bluetooth doesn't connehct to phones, sometimes the keys dont work and the battery life is not very good. also,the camera is not very good at all and it is a very slow phone. Other than that, i really like it.

yes, the bluetooth is only to be used with headsets. the phone doesn't find other bluetooth phones, only headsets, and other bluetooth phones can't find the benq m315... why does it have bluetooth anyway? haha

poor quality and very slow performance...most time I spent on it is 'waiting' for it to finish an operation...and then even worse, it died itself for no reason after being used for 8 months or so - cannot be turned on even when it's being charged(blue background light was contantly on though) and after battery replacement...A total useless hassle...negative negative negative...

Haven't had the phone for long, but i'm using it as a spare.
It's pretty good as a basic phone tough battery life is pretty weak, not sure why.
The camera is definitely not comparable with most of the other phones out in the market, so if you're looking for a good camera, stay away from the M315.
Accessories are also a hassle, as BenQ aren't very big, so it's hard to find replacements for any parts etc if needed.
I am also having similar problems with sending sms's, but i think it may be a result of low battery or low service, i'll have to investigate further to confirm.
If you're looking for a basic first phone, the M315 is certainly a bargain. It may not have fancy MP3 capability, but the ringtones are definitely loud, it offers other useful apps such as a stopwatch and a calculator as well.
The only thing it's lagging for a first phone is a FM Radio. NOTE: The M315 does NOT have a FM Radio.
I bought the M315 for under 100 AUD, you generally should get a free bluetooth headset, a wall charger, one battery and one BenQ M315 headset in the bundle. That is a real bargain.
As i said before, i'm only using this phone as a spare until i purchase a Nokia (most probably N80) or SE (looking at w850i).
This phone is rather user friendly, but I prefer Nokia's interface.

All in all, i'd give this phone a 6.5/10, losing points on the lack of support for the phone, non-MP3 capable and no FM Radio.
Points gain from extremely low price, free bluetooth headset bundled, loud ringtones and sturdy design.

Im having Benq M315 model with warranty, Lot of pbm with attend incoming call,make outgoing call,frequently no service msg(No tower signal even itz fully available compared with other phones) and automatically restart.Currently I am residing in bangalore/India.Pls let me know the service center in bangalore

Can any1 tell- how long last the battery
after full charge??
I purchesed this mob day B4 yesterday.
with in 15hrs charge has run out.is it a
prob of the battery or a permanent prob
of this mobile?? Pls let me know....